Home / 11,219.10-16,820.54-3,423.66

Finding the Fourth Proportional to 11,219.10, 16,820.54 and 3,423.66

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Solution

The fourth proportional to 11,219.10, 16,820.54 and 3,423.66 is: 5,133.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,219.10 : 16,820.54 = 3,423.66 : x
  2. Step 2: Convert to fraction form
    11,219.10/16,820.54 = 3,423.66/x
  3. Step 3: Cross multiply
    11,219.10x = 16,820.54 × 3,423.66
  4. Step 4: Simplify right side
    11,219.10x = 57,587,734.43
  5. Step 5: Solve for x
    x = 57,587,734.43/11,219.10
  6. Step 6: Final answer
    x = 5,133.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.